M.Holubec
[root@mYr0Ch myroch]# cat /etc/sysconfig/iptables
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 21 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
COMMIT
Doncho N. Gunchev napsal(a):
On 2004 12 08 (Wednesday) 15:38, Miroslav Holubec wrote:
Hi, i've problem with my firewall. i think that, it filter my outgoing packets. if i enable firewall in system-config-securitylevel, then a lot of my outgoing connections are filtered. for example:
[user@comp ~]$ ftp 1.2.3.4 Connected to 1.2.3.4. 220 (vsFTPd 1.2.1) 530 Please login with USER and PASS. 530 Please login with USER and PASS. Name (1.2.3.4:user): user 331 Please specify the password. Password: 230 Login successful. Remote system type is UNIX. Using binary mode to transfer files. ftp> ls 227 Entering Passive Mode (1,2,3,4,43,196) ftp: connect: No route to host ftp> passive Passive mode off. ftp> ls 200 PORT command successful. Consider using PASV. 150 Here comes the directory listing. (no reply for a long time)
I have to use passive mode, becouse i'm behind another hw firewall. In FC2 i haven't problem with that. i was trying to search some informations on google, but i wasn't lucky.
thank you for some advice.
M.Holubec
In /etc/sysconfig/iptables-config try setting IPTABLES_MODULES="ip_nat_ftp ip_conntrack_ftp" and restart iptables.